Percona is glad to announce the release of Percona XtraDB
Cluster 5.5.30-23.7.4 for MySQL on April 17, 2013. Binaries
are available from the downloads area or from our software repositories.

New Features:

Percona XtraDB Cluster has implemented initial
implementation of weighted quorum. Weight for node can be
assigned via pc.weight option in the wsrep_provider_options variable. Accepted
values are in the range [0, 255] (inclusive). Quorum is
computed using weighted sum over group members.

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